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ASoC: tlv320dac33: Lower the OSC calibration time 

To get correct calibration, we can decrease the time
needed for the OSC to calibrate itself.
With this change we can save ~15ms in the OSC
calibration phase.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Peter Ujfalusi 2011-04-12 09:09:17 +03:00 committed by Liam Girdwood
parent 4b8ffdb959
commit 82a58a8b7f
1 changed files with 2 additions and 2 deletions
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4
sound/soc/codecs/tlv320dac33.c
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@ -939,8 +939,8 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream)
/* Write registers 0x08 and 0x09 (MSB, LSB) */
dac33_write16(codec, DAC33_INT_OSC_FREQ_RAT_A, oscset);
/* calib time: 128 is a nice number ;) */
dac33_write(codec, DAC33_CALIB_TIME, 128);
/* OSC calibration time */
dac33_write(codec, DAC33_CALIB_TIME, 96);
/* adjustment treshold & step */
dac33_write(codec, DAC33_INT_OSC_CTRL_B, DAC33_ADJTHRSHLD(2) |